Nasal tanners claim to work by using Melanotan II, a chemical that darkens skin pigmentation. It is illegal to sell medicinal products containing Melanotan II in the UK but since the tanners are sold The Dangers of Melanot*n II Explained Melanotan II Erectile Dysfunction: What the Evidence Shows and Practical Considerations Eruptive Dysplastic Nevi Following Melanotan Use Actas Dermo Sifiliogrficas Melanotan What It Is and Its Relation to Skin Cancer The Hidden Dangers of Tanning Nasal Sprays That You Should Be Aware Of